A major point of understanding natural selection is that not all organisms in a population get to reproduce. Consider the term fitness as used in biology. How does this term relate to natural selection?

Based on your answer above, do organisms with higher fitness mean that they have survived to an advanced age? Why or why not?

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.